Rotary pump.



V. G. MUNSON.

ROTARY PUMP.

APPLIGATION FILED JUNE 2s, 1913.

LlyQQQ.. Patented Feb.16,1915.

2 SHBETSYSHEBT 1.

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. MMM" V. G. MUNSON..

ROTARY PUMP. 'APPLICATION FILED JUNE ze, 1913.

2 SHEETS-SHEET 2.

99%, y Patented Feb. 16, 1915.

VICTOR Gr. MUNSON, 0F WHITEHALL: MICHIGAN.

ROTARY PUMP.

Specification of Letters Patent.

Patented Feb. 16, 1915..

Application filed .Tune 28, 1913. Serial No. 776,341.

T0 all whom t may concern:

Be it known that l, VICTOR G. MUNsoN, a citizen of the United States,residing at Whitehall, in the county of Muskegon and State of Michigan,have invented certain newv and useful Improvements in Rotary Pumps, ofwhich the following is a specification.

This invention relates to fluid transmitting pumps of the rotary type,and has for an object the provision of a rotary pump for eflicientlypumping water and like liquids.

Another object lof this invention is the provision of an improved valvemechanism which is automatically operated by the 'operation of a pumpplunger and which prevents any fluid which is drawn in the pump casingfrom receding into the inlet of the pump.

A still further object of this invention is the provision of a pumpplunger which is provided with means for automatically taking up anywear caused by the continuous operation or rotation of the plunger.

`With the foregoing and other objects in view, this invention consistsin such novel features of construction, combination and arrangement ofparts as will be hereinafter more fully described, illustrated in the accompanying drawings and claimed.

ln describing the invention in detail reference will be had to theaccompanying drawings wherein like characters of refer ence designatelike or corresponding parts throughout the several views, and in which,

Figure 1 is a vertical sectional view through the improved pump; Fig. 2is a side elevation of the pump showing one side of the outer casingremoved; Fig. 8 is a cross sectional view through the pump; Figs. fl and5 are detailed side elevations of parts of the pump; Fig. 6 is adetailed perspective view of the pump plunger; and Fig. 7 is a detailedperspective view of the improved valve for preventing the backwardaction of the water which is drawn into the pump casing.

Referring more particularly to the drawings, the numeral 1 designatesone side of the outer casing of the pump and has a Hangs 2 formedintegrally therewith and extending inwardly from the inner surface ofthe side 1. The side 1 of the casing of the pump is circular in shape asis clearly shown in Figs. 1 and 2 of the drawings.

The side 1 has a bearing 3 formed thereupon in which is rotatablymounted a shaft 1l. The shaft l has a shoulder 5 formed thereupon andthe reduced portion 6 of the shaft which extends beyond the shoulder 5has external screw threads formed thereupon adjacent the shoulder 5. Theexternal screw threads formed upon the reduced portion of the shaft lare engaged by a nut 7 which is seated in a recess 8 centrally locatedin the washer 9 which is constructed of leather or other suitablematerial. The washer 9 is held in place and against the edge of theliange 2 by means of a plate 10 which is secured on the flange 2 bymeans of bolts 11 which are inserted in screw threaded apertures 12formed in the flange 2.

The shaft 6 has connected to its outer end any suitable means not shown)for transmitting power thereto such as a crank handle, pulley or thelike.

A. plate 15 is mounted upon the reduced portion 6 of the shaft ll,abutting the shoulder 5, and rotates in unison with the shaft This plate15 is provided with a out out portion 16, formed therein, which receivesthe main body portion 17 of the pump plunger 18. The plunger 18 has areduced portion 19 formed integrally therewith and eX- tending outwardlyfrom one end thereof. The reduced portion 19 gradually tapers inwardlyas it extends away from the body portion 17'of the plunger 18 andterminates in a point 20. The reduced portion 19 has a roller 21rotatably'mounted .upon its upper surface, the purpose of which will behereinafter more fully described.

Seated within a recess 22 formed in the body portion 17 of the plunger18 is a plate 23 which has an expanding coil spring 24, which is seatedwithin a recess 25 formed in the plunger 18 abutting its inner surfaceand pressing the plate 23 outwardly so as to engage the inner surface ofthe flange 2 during the operation of theplunger 18. This plate 23 servesa Vpurpose identical with the piston rings of an engine in that itabsorbs the wear occasioned by the continuous operation of the plunger18.

By seating the body portion 17 of the plunger 18 within the recess 16formed in the plate 15, the plunger will be caused to rotatesynchronously with the plate 15 and as the plate 15 is rigidly connectedto the shaft 4, the former will rotate when rotary motion is imparted tothe `shaft4 by the means heretofore set forth. In this manner theoperation of the plunger 18 maybe started.

The fiange 2 has two openings 30 and 31 formed therein each of whichreceives a screw threaded portion of the pipes 32 and 33 respectively.The pipe 32, which is seated in the opening 30 has a second pipe 34connected thereto in any suitable manner. The pipe 34 has its endy 35,which is connected to thepipe 32, enlarged and a. ball 36 isl` seatedtherein. rlfhe pipes 34 and 32 andthe opening 30 form an inlet for theinteriorof the casing of the pump and the pipe 34 is connected4 to anysuitable source offwater 'or' other liquid supply. 'The ball 3'6vi's ofgreater diameter than the interior ofthe pipe 32 andthe latter has itsend 37 which is seated within the enlarged portion offthefpipe 34,shaped so as to form a seat for the ball `36 and prevent the same frompassing intothe interior of the casing. The end 37v ofy they pipe 32 isalso shaped so as to 'allow water or other fluid to pass therefrom' andinto the interior of the casing of the pump when the ball 36 is inengagement therewith.

' The opening 31, and the pipe 3,3 form an outletffor 'the fluid whichis drawn into the interior of the casingpof the pump' through the'inletopening. y

"A 'circular'shaped member 38 is mounted within the pump.casing and issecurely and rigidly connectedl to the side by means of bolts 39, f Theshaft 4 is rotatably mountedin an opening 4Qwhich extends-through themember i3.8.

The member 38 has a cut out portion 41 formedin its lower side whichreceives the tongue 424 of the valve member 43. The tongue 42 ispivotally connected to the member 38 by means of a pin 44. The lower end45'jofzth'e valve'member 43 is shaped so as to fit snugly yagainst theinner surface of the flange 2 and vform a fluidtight joint therewith,"The outer lower vedge 46 of the tongue 421is shaped so as to conform tothe shape of thev upper edge 47 of :the reduced portion 1,9,oif vthe:plunger 18 and 4,is engaged b'yjj'the roller .21, during apredetermined periodinthe operation `of the plunger 18. llh'en theroller 21 engages the surface 46 ofthe 4tongue' 42 it forces the sameup-k wardly` Awithin the recess' 41Vformed in the member 38.and` forcesthe valve member 43 upwardly a recess 48which is formedl within themember 38 and .against the ten-v sion of y,a eoil spring 49` which ismounted within the recess 48.

A recess 50` communicates with a recess48 and thas a coil spring 51mounted therein.

The coil springs 49 and 51 force the valve member 43 outwardly out ofthe recess 48 and into its normal position as is shown in Fig. 1 of thedrawings, after the plunger 18 has passed beyond the outer edge of theopening 48 during its stroke. A small opening 52 communicates with theupper and inner end of the recess 50 and extends entirely through themember 38 forming an outlet for any air, water or the like which mightbe contained withinV the recesses 49 and 50.

The valve member 43 forms means for preventing the water or other fluidwhich is drawn into the interior of the pump casing from receding intothe pipe 32 and causes the entire amount of fluid drawn into the casing,upon each stroke of the piston 18, to be forced outwardly through thepipe 33.

A peripheral chamber is formed in the casing of the pump about the outersurface of the member 38 and the plunger 18 operates within thischamber.

The suction generated by the operation of the plunger 18 within theperipheral chamber formed in the casing draws water or other liquid intothe peripheral chamber through the inlet and as the plunger 18 litssnugly within the peripheral chamber within the interior of the casingand about the outer edge of the member 38 the iiuid is d forcedoutwardly through the pipe 33 by the shoulder 54 of the body portion 17of the plunger 18.

In practical fields certain minor features of construction, combinationand arrangement of parts may necessitate alterations to which thepatentee is entitled provided such alterations are comprehended withinthe scope of what is claimed.

llVhat is claimed is 1. A rotary pump comprising a casing having aperipheral chamber therein, a. plunger operable within said peripheralchamber, means for imparting motion to said plunger from any suitablepower source, inlet and outlet ports for said chamber, a stationarymember mounted within the case to form the inner wall of said peripheralchamber, and means for preventing any liquid which is drawn into saidperipheral chamber through said inlet from receding into the inlet.

2. A rotary pump comprising a easing having a peripheral chambertherein, a plunger operable within said peripheral chamber, means forimparting motion to said plunger from any suitable power source, amember rigidly connected within the casing to have the plunger carriedtherearound in its path of movement, inlet and cutlet ports for saidchamber, means for preventing any liquid which is drawn into saidperipheral chamber through said inlet from receding into theinlet andmeans earried by said plunger for absorbing the wear occasioned by thecontinuous operation of i the plunger.

. source, inlet and outlet ports for said chambei', a member rigidlyconnected to one side of said easing andv extendingvv into the interiorof the same and means carried by said member for preventing fluid whichis drawn into said peripheral chamber through said inlet from recedinginto said inlet.

l. A rotary pump comprising a casing having a peripheral chambertherein, a plunger operable within said peripheral chamber, means forimparting motion to said plunger from any suitable power source,inletand outlet ports for said chamber, a member rigidly connected toone side of said casing and extending into the interior of the same, avalve member pivotally connected to-said member said valve memberforming means whereby any fluid drawn into said peripheral chamberthrough said inlet will be prevented from receding into said inlet andmeans carried by said plunger for moving said valve member out of thepath of said plunger.

5. ./i rotary pump comprising a casing having a peripheral chambertherein, `a plunger operable within said peripheral chamber, means forimparting motion to said plunger from any suitable power source, inletand outlet ports for said chamber, a member rigidly connected to oneside of said casing and extending into the interior of the same, a valvemember pivotally connected to said member said valve member formingmeans whereby any fluid drawn into said peripheral chamber through saidinlet will be prevented from receding into said inlet, means carried bysaid plunger for moving said valve member out of the path of saidplunger and means carried by said plunger for reducing the frictiongenerated by the engagement of said last named means and said valvemember.

6. i rotary pump comprising a casing, a member rigidly connected in thecenter of said casing to provide a peripheral cham bei therearound, aplunger received in said peripheral chamber, means to transmit motion tosaid plunger to cause travel thereof through the chamber, inlet andoutlet ports for said chamber, a valve carried by said rigidly connectedmember, and all of said parts so arranged that the movement of theplunger through the chamber causes liquid i to be drawn thereintothrough the inlet and discharged through the outlet.

7. A rotary pump comprising a casing, a member rigidly connected to oneside of said casing and extended into the interior thereof to provide aperipheral chamber, a plunger operable within said peripheral chamber totravel throughout the extent thereof, inlet and outlet ports for saidchamber, and means carried by said stationary member to cause liquid tobe taken through the inlet 'and discharged from the peripheral chamberthrough the outlet port.

8. A rotary pump comprising a casing having a circular interior opening,a circular member rigidly connected with one side of said casing toextend thereinto and to form the opening of the casing into a peripheralchamber, a plunger operable to have movement throughout the extent ofthe peripheral chamber, a valve member carried by said rigid member tonormally close the peripheral chamber at a point adjacent thedisposition thereof, inlet and exhaust ports for said chamber, and saidplunger so formed yand mounted that the movement thereof through thechamber causes liquid to be drawn through the inlet and dischargedthrough the outlet and said valve is caused to be operated in the properintervals.

9. A rotary pump comprising a casing made circular in its internalopening, a circular member rigidly connected with one side of saidcasing to extend thereinto and to form the opening of the casing into aperipheral chamber, a valve socket provided in said rigid member, avalve pivotally connected in said socket to be capable of movementthereinto to be entirely without the peripheral chamber, means tonormally hold the valve in a position to obstruct the peripheral chamberat a point adjacent the mounting thereof, a plunger operable within saidperipheral chamber, means for imparting motion to said plunger from anysuitable power source, inlet and outlet ports for said chamber, and allof said parts so arranged that liquid is taken into the chamber throughthe inlet and is discharged therefrom through the outlet and the severalparts are operatedy in the proper interval.

ln testimony whereof l afix my signature in presence of two witnesses.

VCTOR G. MUNSON.

Witnesses:

EDWARD D. Sunnis, O'r'ro H. TRYZELL.

i topics of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents.

Washington, D. C.

